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8 What is the advantage for fusion reactors ? Calculation by M. Temporal et al. for the „Megajoule“ Project Polarized Fusion No optimization of the laser power: Gain increased by factor 4 with use of polarized fuel

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9 What is the advantage for fusion reactors ? 2.) Magnetic Confinement (Tokomak): Collaboration between Jlab (A. Sandorfi et al.), University of Virgina, Oak Ridge Lab. and the DIII-Tokomak in San Diego Polarized Fusion Idea: Feed DIII tokomak with polarized 3 He and D produced with the methods of frozen spin targets like at Jlab.

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10 Which questions must be solved ? 1.) Dependence of the total cross section from the polarization for all fusion reactions. Polarized Fusion d + d t + p 3 He + n Can cross sections be increased ? Can neutrons be suppressed ? Can the trajectories of the neutrons be controlled? Reaction is not s-wave dominated !